Profile path is sent instead of an index to focus a user pod

chrome/test/data/webui/profile_window_browsertest.js

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+function testNoPodFocused() {
+  expectEquals(null, document.querySelector('.pod.focused'),
+               "No pod should be focused.");
+}
+
+function testPodFocused(profilePath) {
+  var pods = document.querySelectorAll('.pod.focused');
+  assertEquals(1, pods.length, "Exactly one pod should be focused.");
+  expectEquals(profilePath, pods[0].user.profilePath,
+               "A wrong pod is focused.");
+}